/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraEditorUtilities.h
Kills all system instances using the referenced system.
namespace FNiagaraEditorUtilities { void FNiagaraEditorUtilities::KillSystemInstances ( const [UNiagaraSystem](API\Plugins\Niagara\UNiagaraSystem) & System ) }